With record magnetic fields to the 21st Century

Boyko, B. A.; Быков, А. И.; Dolotenko, M.I.; Kolokol'Chikov, N. P.; Маркевцев, И. М.; Tatsenko, O. M.; Shuvalov, K.

doi:10.1109/ppc.1999.823621

Cited by 10 publications

(6 citation statements)

References 3 publications

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“…We can understand the origin of magnetic field in heavy-ion collisions by considering collision of two ions of radius with electric charge ( is the magnitude of electron charge) at impact parameter b. According to the Biot and Savart law they create magnetic field that in the center-of-mass frame has magnitude ∼ 3 (1) and points in the direction perpendicular to the reaction plane (span by the momenta of ions). Here = √ /2 is the Lorentz factor.…”

Section: Origin and Properties Of Electromagnetic Fieldmentioning

confidence: 99%

Particle Production in Strong Electromagnetic Fields in Relativistic Heavy-Ion Collisions

Tuchin

2013

Advances in High Energy Physics

439

450

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I review the origin and properties of electromagnetic fields produced in heavy-ion collisions. The field strength immediately after a collision is proportional to the collision energy and reaches ~mπ2at RHIC and ~10mπ2at LHC. I demonstrate by explicit analytical calculation that after dropping by about one-two orders of magnitude during the first fm/c of plasma expansion, it freezes out and lasts for as long as quark-gluon plasma lives as a consequence of finite electrical conductivity of the plasma. Magnetic field breaks spherical symmetry in the direction perpendicular to the reaction plane, and therefore all kinetic coefficients are anisotropic. I examine viscosity of QGP and show that magnetic field induces azimuthal anisotropy on plasma flow even in spherically symmetric geometry. Very strong electromagnetic field has an important impact on particle production. I discuss the problem of energy loss and polarization of fast fermions due to synchrotron radiation, consider photon decay induced by magnetic field, elucidateJ/ψdissociation via Lorentz ionization mechanism, and examine electromagnetic radiation by plasma. I conclude thatallprocesses in QGP are affected by strong electromagnetic field and call for experimental investigation.

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Section: Origin and Properties Of Electromagnetic Fieldmentioning

confidence: 99%

Particle Production in Strong Electromagnetic Fields in Relativistic Heavy-Ion Collisions

Tuchin

2013

Advances in High Energy Physics

439

450

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“…According to report of "Russian Federal Nuclear Center" in Ref. [63], the magnetic field of more than 28 MegaGauss (MG) was recorded in the laboratory with cascade "magneto-cumulative generator" method. From B = mc ω c /e, in the CGS units, with ω c = 3.2×10 14 rad/s, the maximum magnetic field which is used in the manuscript is 20 MG.…”

Section: Numerical Results and Discussionmentioning

confidence: 99%

Spatiotemporal Evolution of Intense Short Gaussian Laser Pulses in Weakly Relativistic Magnetized Plasma

Olumi

Maraghechi

2016

Contrib. Plasma Phys.

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Key words High-intensity lasers, ultra-short pulses, relativistic nonlinearity, self-focusing in plasma, selfcompression in plasma.The weakly relativistic regime of propagation of a short and intense laser pulse in the magnetized plasma is investigated. By considering relativistic nonlinearity and using non-linear Schrödinger equation with paraxial approximation, two second-order coupled differential equations are obtained for the longitudinal pulse width parameter (in time) and for the transverse pulse width parameter (in space). The simultaneous evolution of spot size and length of a relativistic Gaussian laser pulse in a magnetized plasma can be calculated by the numerical solution of the equations. The effect of magnetic field is investigated. It is observed that in the presence of magnetic field both the self-compression and the self-focusing can be enhanced. Furthermore, the interplay between the longitudinal self-compression and the transverse self-focusing in a magnetized plasma is investigated.

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“…Typical magnitude of B eff , 2.7 × 10 4 T for an 800 nm laser, is stronger than any magnetic field created by human being27. E eff is order of 10 9 V/m in a typical CPL with a duration of 100 femtosecond and a fluence of 500 mJ/cm 2 (see Supplementary Information).…”

Section: Effective Fieldsmentioning

confidence: 99%

Fundamental mechanism for all-optical helicity-dependent switching of magnetization

Chen

2017

Sci Rep

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Switching magnetizations with femtosecond circularly polarized lasers may have revolutionary impacts on magnetic data storage and relevant applications. Achievements in ferrimagnetic and ferromagnetic materials of various structures strongly imply a general phenomenon of fundamental atom-laser interaction. Rotating an atom’s wave function with the rotating electric field of a circularly polarized laser, I show the quantum mechanics for the atom is equivalent to that in a static electric field of the same magnitude and a tremendous static magnetic field which interacts with the atom in somewhat different ways. When some conditions are satisfied, transitions of atoms in these two crossed effective fields lead to a highly nonequilibrium state with orbital magnetic moments inclining to the effective magnetic field. The switching finally completes after the pulse duration via relaxation.

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With record magnetic fields to the 21st Century

Cited by 10 publications

References 3 publications

Particle Production in Strong Electromagnetic Fields in Relativistic Heavy-Ion Collisions

Particle Production in Strong Electromagnetic Fields in Relativistic Heavy-Ion Collisions

Spatiotemporal Evolution of Intense Short Gaussian Laser Pulses in Weakly Relativistic Magnetized Plasma

Fundamental mechanism for all-optical helicity-dependent switching of magnetization

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